Well they could do that for theater but they don't need it anymore
They've already illegally cross-linked all the federal databases and banking data
People would have to be 100% off the grid which is nearly impossible and miserable these days
The real question is after they run out of 15 million "undocumented"
will ICE be used again 25 million naturalized citizens (yes likely with new $140 Billion budget)
And then there is the question how many millions of birthright citizens will ICE go after, how many generations back, where on earth would they deport them since they've never lived in any other country?
US won't be recognizable by 2028, going to be a horror show